Duplicating-machine.



A; D. KLABER.

1 DUPLICATING MACHINE.

APPLICATION FILED JAN- 23, 1915- 1.,178,161 Patented Apr. 4, 1916.

2 SHEETSSHEET 1- WITNESSES INVENTOR MA /W.

AORNEY I THE COLUMBIA PLANOORAPH 120., WASHINGTON, D. C.

A. D. KLABER.

DUPLICATING MACHINE.

APPLICATION FILED JAN. 23. 1915.

1 178, 1 6 1 Pat-ehted Apr. 4, 1916.

2 SHEETS-SHEET 2- W/T/VESSES UVVE/VTOR W A TTORNEY Unrrsn snares PATENT OFFIQE.

AUGUSTUS D. KLABER, OF LONDON, ENGLAND, ASSIGNOR TO A. B. DICK COMPANY, OF

' CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DUPLICATING-MACHIN E.

nvader.

Application filed January 23, 1915.

To all whom it may concern:

Be it known that I, AUGUSTUS D. KLABER, a subject of the King of Great Britain, re-

siding at London, England, have invented contained structure.

The principal object of my invention is T to provide a device of this character which may be readilytransported from place to place and which will containwithin itself all the necessary elements of a stencil-duplicating outfit.

Other objects of my invention reside in the details of construction and combination of parts which will be more particularly described in the following specification and i pointed out in the accompanying claims.

Inorder that my invention may be more clearly understood, attention is hereby di: rected to the accompanying drawings forming part of this application and illustrating certain embodiments of myinvention.

In the drawings, Figure 1 represents a top plan view of the duplicating outfit with the" cover removed, Fig. 2 represents a side elevation of the same, partly in section, the impression roller of the duplicating machine being shown in dotted lines in position for feeding the paper thereto, and in full lines in inoperative position, Fig. 3 is an end elevation of the duplicating machine on an enlarged scale showing the impression roller inoperative position'and also showing the inlcsupplying brush as in operative position, and Fig. 4: is a partial end elevation of the apparatus shown partlyrin section. i

Referring to the drawings, the base plate 1 carries the standards 2, 2 upon which the printing cylinder or drum 3 of usual construction is mountedup'cn a shaft 4:. To the left of'theduphcating cylinder, stand- Specification of Letters Iatent.

Patented Apr. 4:, 1916.

Serial No. 3,866.

ards 5, 5 are mounted which are adapted to support the spindle 6 of a paper supply roll 7.

The impression roller 8 is rotatably mounted on spindle 9, between a pair of arms 10, which are pivotally mounted at 11, to the standards :2 at points which are eccentric to the axis of drum 3. A coiled spring 12 is provided for each pivoted arm 10, springs 12 being secured at their lower ends to the side frames2at points 13, below the pivots 11 of arms 10, and at their upper ends to arms 10 as shown at 14. A handle 15 may be provided for the impression roller and a transverse strengthening rod or member 16 provided between the arms 10 above the impression roller. When the device is out of use and is to be transported, arms 10 may be swung to the left to an inoperative position, as shown in Fig. 2 in full lines, in which the impression roller occupies space between the paper roll 7 and printing roll 3, lugs or abutments 17, 17 on frame members 2 being provided to support arms 10 in this position. Sutficient space may be provided so that when the impression roller and its handle are in this 7 position, the device may be closed by a suitroller and the drum 3, the impression roller is moved into the position shown in dotted lines in Fig. 2, in which the impression roller is out of contact with the surface of the drum and pawls 19 are in contact with lugs 18 of the frame. In this position, arms 10 are inclined somewhat to the right from the vertical and will be held in this positicn by the engagement of pawls 19 with their abutments until the forward edge of the paper has been positioned, when pawls 19 may be raised out of engagement with lugs 18 and the impression roller droppedinto its operative position as shown in Fig. 3, the springs 12 being so arranged as to tend to hold the impression roller in contact with the paper on the drum in this position. A hand crank 20 on shaft 4 maybe provided for rotating the drum.

Arms 21 are pivoted to the side frames 2 and support a brush 22 adapted to distribute ink over the surface of drum 3. A handle 23 may be provided for moving the brush. A transverse rod 24: extends between or is formed integral with arms 21, and brush 22 is carried by this rod. A hook or pair of hooks 25 are pivotally mounted on rod 2% and are adapted to engage a rod or transverse member 26, which extends between arms 27 of side frames 2. The brush 22 is adapted to engage the surface of drum 3 when the brush is raised to its operative position and supported by the engagement of hrok or hooks 25 with bar 26. A trough 27 is mounted on base plate 1 in position to clean the brush 22 when the latter is in inoperative positicn and to collect excess ink.

The spindle 6 on paper roll 7 is removably mounted in its hearings in standards 5 as shown, and the paper 28 is arranged to be led off from the top of the roll. To prevent a too rapid feed of the paper, a retarding device 29 is employed pivctally mounted at 30, 30 to the standards 5, springs 31 connected to standards 5 and to arms on member 29 serving to hold the latter pressed against the surface of the paper on roll 7.

The whole outfit is intended to be mounted within a suitable casing which may comprise a base plate 32 and a cover member 33 which may be removably secured thereto. Base plate 1 carrying the duplicating apparatus and the paper roll supports is removably mounted within this casing by suit able means such as illustrated at the right in Fig. 2. For thi purpose, brackets or lugs 34 and 35 may be provided upon the casing base plate 32, the base plate 1 of the duplicating apparatus being provided with suitably prsitivned lugs 86 and 37 to fit within brackets 34 and 35. Lugs 36 may be provided with fixed pins 38 which engage with in slots in bracket 34 and lugs 37. are provided with spring pressed pins 39 which may be engaged within corresponding h les in bracket 35 and held in such position by their springs 40.

A second casing 41 may be mounted within casing 33 as shown at the left in Fig. 2, in which are'carried the supplies of-stencil paper and extra rolls of paper to be printed upcn. A roll of stencil paper is illustrated at 42 and extra rolls of printing paper at 4-3 and 41. From the roll of stencil paper a suitable length may be taken Whenever a fresh sheet of stencil paper is desired and fitted upon drum These rolls may be secured within casing 41 in any suitable manner. a convenient form f attachment being illustratedas comprising the supports or slings 45 and press fasteners 46, the slings- 45 being suitably suspended from the under side of the cover or casing'tl.

' In the operation of the duplicating apparatus, a paper roll is fitted on the bearings of standards 5, 5, and the ink distributing brush 22 is raised into engagement with the position shown in dotted lines in Fig. 2 with the pawl 19 in engagement with the lug 18 of the side frame. laper is led off from roll 7 between drum 8 and impression roller 8, after which'pawllS is lifted. clear of lug l8 and the impression roller permitted to drop into contactwith the paper on drun 3 in the position shown in Fig. 3. The operating handle 20 is now turned and the desired copies produced. The paper used is preferably perforated in lengths approximately equal to the circumference of drum 3, the sheets being torn otf at ;the perforations after printing. Instead of using perforated paper however, the printed copies maybe separated from the web of paper in the wellknown manner. V V o- Having described my invention what I claim as new therein and desire to secure by Letters Patent of the United States is; V

1. In a duplicating machine, the combination of a frame, a rotatable drum mounted therein, an impression roller, hand-lever means carrying said roller and pivoted to said frame eccentrically to the axis ofthe drum and adapted to swing said roller into operative position above the drum and into inoperative position at one side of the drum,

said frame havingan abutment to supportsaid means in inoperative position, and also having a second abutment; latch meanscarried by'sai'd means, adapted to coact with r 1 said second abutment to holdsaid roller in position to permit a sheet of paper to be led between the same and thetop of the drum, and spring means tending to hold said roller in operative position when said latch means is released, substantially as set forth.

2. In a duplicating machine, the combination of a frame, a rotatable drum mounted therein, an impression roller, hand-lever means carrylng said roller and pivoted to I said trame eccentrlcally to theaxis of the drum, adapted to swing said roller into operativeposition above thedrum andlnto 1noperative pos tion'at one SIClQ Of the drum, a

pawl carried by said means, adapted tocoact i with the frame to hold said roller away from the drum andahove the same, and a spring secured to the tra ne and to said means pos tioned to hold said roller in printing position in contact with said drum, when said pawl is released, substantially as set forth.

3. In a duplicating machine, the combination of a rotatable drum, a frame in Which said drum is mounted, a support on which said frame is mounted, a paper-roll-support mounted on said support, parallel to said frame, an impression roller pivotally mounted on said frame, adapted to swing to an inoperative position between said drum and a paper roll on said paper-roll-support,

to an operative position with respect to said drum, and to an intermediate inoperative position above said drum, and releasable means for holding said roller in said lastnamed position. 7

4. In a duplicating machine, the combina- Oopies of this patent may be obtained for tion of a casing provided with a cover, a base plate reinovably secured in said casing, a paper-roll-support and a duplicating machine mounted on said base plate, said duplieating machine having a drum, a pivoted impression-roller and a pivoted inking-brush, and means for positioning the said roller and brush for operation adjacent the upper portion of the'druin, said roller and brush occupying inoperative lowered positions when said cover is positioned on the casing.

This specification signed and witnessed this 11th day of January, 1915.

A. D. KLABER. WVitnesses:

H. D. J AMESON, O. J. WORTH.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

